21745697739840

Names of 21745697739840

• Cardinal: 21745697739840 can be written as Twenty-one trillion, seven hundred forty-five billion, six hundred ninety-seven million, seven hundred thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.174569773984 × 10¹³

Factors of 21745697739840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 413587

Divisors of 21745697739840

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 31 32 36 38 40 45 48 57 60 62 64 72 76 80 90 93 95 96 114 120 124 144 152 155 160 171 180 186 190 192 228 240 248 279 285 288 304 310 320 342 360 372 380 456 465 480 496 558 570 576 589 608 620 684 720 744 760 855 912 930 960 961 992 1116 1140 1178 1216 1240 1368 1395 1440 1488 1520 1710 1767 1824 1860 1922 1984 2232 2280 2356 2480 2736 2790 2880 2883 2945 2976 3040 3420 3534 3648 3720 3844 4464 4560 4712 4805 4960 5301 5472 5580 5766 5890 5952 6080 6840 7068 7440 7688 8649 8835 8928 9120 9424 9610 9920 10602 10944 11160 11532 11780 13680 14136 14415 14880 15376 17298 17670 17856 18240 18259 18848 19220 21204 22320 23064 23560 26505 27360 28272 28830 29760 30752 34596 35340 36518 37696 38440 42408 43245 44640 46128 47120 53010 54720 54777 56544 57660 61504 69192 70680 73036 76880 84816 86490 89280 91295 92256 94240 106020 109554 113088 115320 138384 141360 146072 153760 164331 169632 172980 182590 184512 188480 212040 219108 230640 273885 276768 282720 292144 307520 328662 339264 345960 365180 413527 424080 438216 461280 547770 553536 565440 584288 657324 691920 730360 821655 827054 848160 876432 922560 1095540 1168576 1240581 1314648 1383840 1460720 1643310 1654108 1696320 1752864 2067635 2191080 2481162 2629296 2767680 2921440 3286620 3308216 3505728 3721743 4135270 4382160 4962324 5258592 5842880 6202905 6573240 6616432 7443486 7857013 8270540 8764320 9924648 10517184 12405810 12819337 13146480 13232864 14886972 15714026 16541080 17528640 18608715 19849296 23571039 24811620 25638674 26292960 26465728 29773944 31428052 33082160 37217430 38458011 39285065 39698592 47142078 49623240 51277348 52585920 59547888 62856104 64096685 66164320 70713117 74434860 76916022 78570130 79397184 94284156 99246480 102554696 115374033 117855195 119095776 125712208 128193370 132328640 141426234 148869720 153832044 157140260 188568312 192290055 198492960 205109392 230748066 235710390 238191552 243567403 251424416 256386740 282852468 297739440 307664088 314280520 353565585 377136624 384580110 396985920 397399447 410218784 461496132 471420780 487134806 502848832 512773480 565704936 576870165 595478880 615328176 628561040 707131170 730702209 754273248 769160220 794798894 820437568 922992264 942841560 974269612 1025546960 1131409872 1153740330 1190957760 1192198341 1217837015 1230656352 1257122080 1414262340 1461404418 1508546496 1538320440 1589597788 1845984528 1885683120 1948539224 1986997235 2051093920 2192106627 2262819744 2307480660 2384396682 2435674030 2461312704 2514244160 2828524680 2922808836 3076640880 3179195576 3576595023 3653511045 3691969056 3771366240 3897078448 3973994470 4102187840 4384213254 4525639488 4614961320 4768793364 4871348060 5657049360 5845617672 5960991705 6153281760 6358391152 7153190046 7307022090 7383938112 7542732480 7550589493 7794156896 7947988940 8768426508 9229922640 9537586728 9742696120 10960533135 11314098720 11691235344 11921983410 12306563520 12716782304 14306380092 14614044180 15101178986 15588313792 15895977880 17536853016 17882975115 18459845280 19075173456 19485392240 21921066270 22628197440 22651768479 23382470688 23843966820 25433564608 28612760184 29228088360 30202357972 31791955760 35073706032 35765950230 36919690560 37752947465 38150346912 38970784480 43842132540 45303536958 46764941376 47687933640 57225520368 58456176720 60404715944 63583911520 67955305437 70147412064 71531900460 75505894930 76300693824 77941568960 87684265080 90607073916 95375867280 113258842395 114451040736 116912353440 120809431888 127167823040 135910610874 140294824128 143063800920 151011789860 175368530160 181214147832 190751734560 226517684790 228902081472 233824706880 241618863776 271821221748 286127601840 302023579720 339776527185 350737060320 362428295664 381503469120 453035369580 483237727552 543642443496 572255203680 604047159440 679553054370 701474120640 724856591328 906070739160 1087284886992 1144510407360 1208094318880 1359106108740 1449713182656 1812141478320 2174569773984 2416188637760 2718212217480 3624282956640 4349139547968 5436424434960 7248565913280 10872848869920 21745697739840
• Sum of all divisors σ(n): 81354670188480
• Sum of proper divisors (its aliquot sum) s(n): 59608972448640
• 21745697739840 is an abundant number, because the sum of its proper divisors (59608972448640) is greater than itself. Its abundance is 37863274708800

Bases of 21745697739840

• Binary: 100111100011100010000100101101101010001000000₂
• Hexadecimal: 0x13C71096D440
• Base-36: 7PHU2Z680

Squares and roots of 21745697739840

• 21745697739840 squared (21745697739840²) is 472875370192482484323225600
• 21745697739840 cubed (21745697739840³) is 10283004868820669665106355161938427904000
• The square root of 21745697739840 is 4663228.2530281531
• The cube root of 21745697739840 is 27912.0102365659

Scales and comparisons

• 21,745,697,739,840 seconds is equal to 691,445 years, 48 weeks, 10 hours, 24 minutes.
• To count from 1 to 21,745,697,739,840 would take you about one million, seven hundred twenty-eight thousand, six hundred fourteen years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21745697739840 cubic inches would be around 2326 feet tall.

Recreational maths with 21745697739840

• 21745697739840 backwards is 04893779654712
• 21745697739840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21745697739840's digits is 72
• More coming soon!